Net shaped high performance oxide ceramic parts by selective laser melting

By Hagedorn Yves-Christian, Wilkes Jan, M. Wilhelm, W. Konrad, Poprawe Reinhart. 2010

274 citations recorded by the source corpus.

Abstract An additive manufacturing technique (AM) for ceramics, based on Al2O3–ZrO2 powder by means of Selective Laser Melting (SLM) is presented. Pure ceramic powder is completely melted by a laser beam yielding net-shaped specimens of almost 100% densities without any post-processing. Possible crack formation during the build-up process due to thermal stresses is prevented by a high-temperature preheating of above 1600 ∘C. Specimens with fine-grained nano-sized microstructures and flexural strengths of above 500 MPa are produced. The new technology allows for rapid freeform manufacture of complex net-shaped ceramics, thus, exploiting the outstanding mechanical and thermal properties for high-end medical and engineering disciplines.

Subfields: Biomedical Engineering, Computational Mechanics

View Paper: https://www.semanticscholar.org/paper/900d3f24283f27a2f16fad8a01de2d855733b52e

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In Computational Mechanics

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4. A. Anderson

Citations in the corpus

• A review of additive manufacturing of ceramics by powder bed selective laser processing (sintering / melting): Calcium phosphate, silicon carbide, zirconia, alumina, and their composites (2021, methodology): “Metallic aluminum [103], PMMA [104], B2O3 [105], Stearic acid [89], zirconia [106], epoxies (Fig.”
• Fabrication of dense zirconia-toughened alumina ceramics through a stereolithography-based additive manufacturing (2017, methodology): “The mechanical properties of the ZTA ceramics fabricated in this study are essentially identical to those of ZTA ceramics produced via the conventional fabrication routes mentioned above, and a systematic comparison of the mechanical properties measured in the present study with the corresponding pr”
• Additive Manufacturing: A Comprehensive Review (2024, background): “In 2010, Hagedorn was able to develop technology that completely laser melts pure ceramic powder and manufactures net-shaped specimens with almost 100% densities without requiring post-processing to achieve it [76].”
• Light curing strategies for lithography-based additive manufacturing of customized ceramics (2014, unknown): “A modification of the light source allows for the customization of the ight curing strategy for each pixel of the exposed layers.”
• Residual Stresses at Laser Surface Remelting and Additive Manufacturing (2011, methodology): “This problem is typical for various kinds of laser processing as welding [1,2], selective laser melting (SLM) [2-4], surface remelting [5] and cladding [6].”